(Xojo Plugin) Find a ZIP Entry by Exact Path Using EntryOf

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This example demonstrates how to use the EntryOf method to find a ZIP entry whose stored path exactly matches a specified path.

Unlike EntryMatching, which performs wildcard matching, EntryOf performs an exact path lookup.

This method is useful when:

• The exact ZIP path is already known
• Retrieving a specific file or directory entry
• Verifying whether a particular entry exists in the ZIP archive

Suppose the ZIP archive contains:

docs/
docs/readme.txt
docs/manual.pdf
images/logo.png
data/config/settings.json

ZIP archives may optionally contain explicit directory entries such as docs/. These directory entries can also be retrieved using EntryOf.

The example:

• Finds an exact file entry
• Finds an exact directory entry
• Demonstrates the difference between file and directory entries

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

Dim success As Boolean
success = False

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

success = False

// Open an existing ZIP archive.
Dim zip As New Chilkat.Zip

success = zip.OpenZip("example.zip")
If (success = False) Then
    System.DebugLog(zip.LastErrorText)
    Return
End If

Dim entry As New Chilkat.ZipEntry

// ------------------------------------------------------------
// Find a specific file entry by its exact ZIP path.

success = zip.EntryOf("docs/readme.txt",entry)

If (success = True) Then
    System.DebugLog("Found file entry:")
    System.DebugLog("  FileName = " + entry.FileName)
    System.DebugLog("  IsDirectory = " + Str(entry.IsDirectory))
    System.DebugLog("")
End If

// ------------------------------------------------------------
// Find a directory entry.
// 
// ZIP archives may optionally contain explicit directory entries.
// In this example, "docs/" is a separate directory entry.

success = zip.EntryOf("docs/",entry)

If (success = True) Then
    System.DebugLog("Found directory entry:")
    System.DebugLog("  FileName = " + entry.FileName)
    System.DebugLog("  IsDirectory = " + Str(entry.IsDirectory))
    System.DebugLog("")
End If

// ------------------------------------------------------------
// Attempt to find a non-existent entry.

success = zip.EntryOf("images/missing.png",entry)

If (success = False) Then
    System.DebugLog("The entry images/missing.png was not found.")
End If

zip.CloseZip 

System.DebugLog("Done.")